Improvement in sawing-machines



JOSEPH FREY, OF BATTLE GREEK, MICHIGAN.

IMPROVEMENT IN SAWlNG-MACHINES.

Specification forming part of Letters Patent No. 46,460, dated February21, 1865.

To all whom it may concern Be it known that I, JOSEPH FREY, of BattleGreek, in the county ot' Calhoun and State ot' Michigan, have invented anew and useful Improvement in Sawing-Machines; and I do hereby declarethe following to be a full and exact description ot' the same, referencebeing had to' the accompanying drawings, which form a part ot' thisspeciiication, and represent a perspective view of the sawing-ma chineembodying my invention.

This invention consists in a sawing-machine, consisting, essentially, ofa guide-frame of peculiar construction used in connection with a systemof levers for raising and lowering the same, and with atumbling-shaft,worn1 shaft, and adjusting-lever for throwing the feedroller in and out of gear, al1 as will be herein after described.

In order that others skilled in the art to which my invention appertainsmay be enabled to t'ullyunderstand and use the same, I will proceed todescribe its construction and operation.

In the accompanying drawings, B B B2 represent frames which support theseveral operating parts, and B3 B3 are the log Ways in which thefeedroller D is jourualed.

L is the saw, which has a reciprocatory movement imparted to it by acrank-wheel, H, through the medium of arms it lt, which are jointed toeachother and to a bar, I, which is pivoted to the uprighttrame B2 andoscillates as the arms h L are advanced and retracted. L2 is a frame,pivoted to the trame B2, and having attached to its loose end a guide,L3, for the driving-arm IL.

L' is the saw-guide pivotcd between suitable lugs on the guide L3, and Gis a spiral spring situa-ted beneath the inner end of the guide L.

guide L down upon the saw, and, as the latter, together with the frameL2 and its appurtenances, falls by gravitating as the kerf The spring Gacts to press the4 in the log deepens, the action of the spring G servesto constantly brace the saw and hold it to its work.

' J is a rope passing over a small pulley, b, and attached at itsrespective ends to an arm, L4, and lever J. By-the depression oi thelever the saw L is thrown up to permit the log to be moved under it bythe roller D.

Upon the shaft of the crank-wheel H is a gear-wheel, F', which, meshingwith the teeth of another gear-wheel H2, rotates a worm A.

Bis a cog-wheel secured upon the end ot' a rod, C; and F is a rodattached to the rod U and a lever, E, which lever has its fulcrum at H.A

C' is a rod connected to the roller D and to the rod C, the latterconnection being made by a universal joint at c.

By raising the loose end ot' the lever E the operator can easily throwthe cog B into gear with the worm A, which will produce the rotation ofthe rods C C and feed-roller D. The cog B, having been retained in gearwith the worm A until the log has been moved to proper position to besubmitted to the action of the saw, the operator permits the lever E tofall, so as to allow the cog B by gravitation to fall to a position outof connection with the worin A, wh en the rotation of the feedroller Dceases and themovement of the log is arrested.

Having thus described my invention, the following is what I claim as newand desire to secure by Letters Patent:

The arrangement, in a sawing-machine, of the saw L, guide L', saw-frameL2, spring-G, levers E L4 J, pitman h, crank-wheel H, worm A, rod j',pinion B, tumbling-shafts C U, and roller D, the whole constructed andoperating substantially as herein set forth.

Josn'rn nnnr.

I/Vitnesses L. V. KELLOGG, SiMnoN BAKER.

